| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] of four years | 60 |
|
| 2 | [noun sg] of four years | 58 |
|
| 3 | be of four years | 17 |
|
| 4 | [be] of four years | 17 |
|
| 5 | period of four years | 15 |
|
| 6 | period of four years | 15 |
|
| 7 | [is] of four years | 14 |
|
| 8 | is of four years | 14 |
|
| 9 | of [adv] four years | 6 |
|
| 10 | of [adv] four years | 6 |
|
| 11 | of [noun] four years | 6 |
|
| 12 | of four [adj] years | 7 |
|
| 13 | of four [num] years | 5 |
|
| 14 | of four years ' | 21 |
|
| 15 | of four years ' | 21 |
|
| 16 | of four years [unc] | 21 |
|
| 17 | of four years ['s] | 21 |
|
| 18 | of four years [prep] | 14 |
|
| 19 | of four years [prep] | 14 |
|
| 20 | of four years [adv] | 8 |
|
| 21 | of four years [adv] | 8 |
|
| 22 | of four years [conj] | 6 |
|
| 23 | of four years of | 5 |
|
| 24 | of four years of | 5 |
|
